MERCURY_OPTIONS= --deep-random-write=25 --mdb-disable-progress
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/tests/warnings'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/stage2/scripts/mmc --generate-dependencies --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --output-compile-error-lines 0 --infer-all     purity_warnings > purity_warnings.dep_err 2>&1
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/tests/warnings'
make[3]: Entering directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/tests/warnings'
/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/stage2/scripts/mmc --make-interface --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --output-compile-error-lines 0 --infer-all     purity_warnings
/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/stage2/scripts/mmc --errorcheck-only --grade hlc.par.gc     --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS --output-compile-error-lines 0 --infer-all     purity_warnings > purity_warnings.err 2>&1
make[3]: *** [/tmp/mmake.GqahgJ:2163: purity_warnings.err] Error 1
make[3]: Target 'purity_warnings.runtest' not remade because of errors.
make[3]: Leaving directory '/mnt/testing/run/build/mercury-srcdist-rotd-2023-08-04/tests/warnings'
ERROR OUTPUT
purity_warnings.m:030: In call to predicate `io.write_string'/3:
purity_warnings.m:030:   warning: unnecessary `semipure' indicator.
purity_warnings.m:030:   No purity indicator is necessary.
purity_warnings.m:031: In call to predicate `io.print'/3:
purity_warnings.m:031:   warning: unnecessary `impure' indicator.
purity_warnings.m:031:   No purity indicator is necessary.
purity_warnings.m:033: In predicate `impure_pred1'/2:
purity_warnings.m:033:   warning: declared impure but actually pure.
purity_warnings.m:037: In predicate `impure_pred2'/2:
purity_warnings.m:037:   warning: declared impure but actually semipure.
purity_warnings.m:045: In predicate `semipure_pred'/2:
purity_warnings.m:045:   warning: declared semipure but actually pure.
purity_warnings.m:047: In call to predicate `io.write_string'/3:
purity_warnings.m:047:   warning: unnecessary `semipure' indicator.
purity_warnings.m:047:   No purity indicator is necessary.
purity_warnings.m:077: In predicate `impure_method1a_impl'/2:
purity_warnings.m:077:   warning: declared impure but actually pure.
purity_warnings.m:079: In call to predicate `io.print'/3:
purity_warnings.m:079:   warning: unnecessary `impure' indicator.
purity_warnings.m:079:   No purity indicator is necessary.
purity_warnings.m:089: In predicate `semipure_method_a_impl'/2:
purity_warnings.m:089:   warning: declared semipure but actually pure.
purity_warnings.m:091: In call to predicate `io.print'/3:
purity_warnings.m:091:   warning: unnecessary `semipure' indicator.
purity_warnings.m:091:   No purity indicator is necessary.
purity_warnings.m:114: Error: foreign clause for predicate `get_x'/1 has purity
purity_warnings.m:114:   impure but that predicate has been declared semipure.
END OF THE ERROR OUTPUT